PLL-based zero delay buffer for clock distribution
The Cypress CY2308ZI-1HT is a PLL-based zero delay buffer designed to regenerate and fan out a clock signal with low skew. It accepts a single-ended clock input and provides four buffered outputs, with a maximum output frequency of 133.3 MHz. The integrated PLL can be bypassed, allowing the device to function as a simple clock buffer when PLL cleanup is not required. Operating from a 3V to 3.6V supply and rated for -40°C to 85°C, it suits industrial control, telecom line cards, and networking equipment where multiple synchronous clock domains must be derived from one reference.
The 133.3 MHz maximum frequency covers most reference clocks used in Ethernet PHYs, FPGAs, and SoCs. The PLL bypass mode lets you feed a clean external clock straight through without PLL jitter cleanup.
Supply and temperature range
The 3V to 3.6V supply range aligns with standard 3.3V logic rails.
Note that the part is marked RoHS non-compliant, so it is not suitable for lead-free assembly lines unless explicitly exempted.